Do my passwords ever leave my computer?

No. Mailriva is a native desktop app. Your login details never need to be entered into a website and are never transmitted to our servers or any third parties.

Will my old mailbox be changed or deleted by the migration?

No. Mailriva only accesses your old mailbox in read-only mode (copying). No emails in the source account are deleted, moved, or marked as read.

Can I switch directly from Yahoo or iCloud to Gmail?

Yes. Mailriva was developed exactly for these seamless provider-to-provider migrations, keeping all subfolders intact.

Is Mailriva an online tool?

No. You download an installation file (.exe for Windows or .dmg for Mac) and run the program locally on your hard drive.

Can I backup my emails to my hard drive before switching?

Yes, absolutely. You can use Mailriva to save your entire mailbox in a clean folder structure locally as a backup on your PC.

Are contacts and calendars transferred as well?

No. Mailriva is 100% specialized in transferring huge amounts of emails and their file attachments flawlessly and without crashing.

Migrate emails safely — with Mailriva

Moving from Yahoo, iCloud, Outlook, or Gmail? Mailriva transfers your entire mailbox locally via IMAP — with no web tool, no cloud service, and no passwords leaving your device.

Get started for free How it works

45+ providers preconfigured

Folder structure preserved

Source stays untouched

Passwords stay local

How it works

Select source, set destination, start. Mailriva copies all folders, emails and attachments directly from server to server.

Connect source

Select your current provider and sign in within the app — not in a browser.

Set destination

Choose Gmail, Outlook.com or any other IMAP provider as your new mailbox.

Copy emails

Mailriva transfers everything 1:1 — folders, attachments, sent items. Your old mailbox stays intact.

Learn more about email migration →

Also: Backup & free up storage

Local backup

Create a safety copy of your mailbox on your hard drive — as EML files or MBOX format. In case something goes wrong.

Learn more →

Storage full?

Download old or large emails locally on your computer, then delete them at your provider. Saves expensive storage subscriptions at Gmail, Yahoo or iCloud.

Learn more →

What actually happens when you switch providers

Most email providers do not offer a complete migration path. Built-in import features have been discontinued, access is locked behind security settings, or only the inbox gets transferred.

Mailriva works as an independent desktop app. It connects via the standard IMAP protocol and copies your data reliably — all folders, attachments, and sent mail. Your passwords never leave your device.

Gmail

Google is discontinuing POP3 import and Gmailify in 2026. External mailboxes can no longer be linked. Mailriva copies all folders and sent mail via IMAP.

Outlook.com

Microsoft has removed the ability to import external accounts in the web interface. Mailriva connects both mailboxes directly via IMAP.

Yahoo / AOL

Yahoo recently reduced free storage from 1 TB to 20 GB. Mailriva helps you back up or migrate before space runs out.

iCloud Mail

Apple requires app-specific passwords for any external access. Mailriva walks you through creating one step by step.

45+Providers preconfigured

1:1Folder structure preserved

100%Source stays unchanged

Your Data. Your Computer. No Online Tool.

Most migration services require you to enter your credentials into a web form. Your mailbox is then transferred through third-party servers — outside your control.

Mailriva reverses this principle: You download the software to your computer. The entire processing and transfer happen exclusively through your own internet connection. Maximum privacy, by design.

No passwords in the browser

No cloud intermediaries

Designed for privacy

More about privacy→